Sorry but no. Devs and publishers will target where they make the most money. Primarily. And that just happens to be consoles. The spec of hardware in the PC space today already exceeds what we will see in consoles next gen, and the tech that will drive the next generation of games are already there, but you will not see games being designed to fully support that tech until the next gen consoles come around again. Thats how it always is. PCs just show you what will happen if you are running this games at either a higher or lower spec...thats why PC games give you recommended specs.
Checkerboarding on the Pro is just what was needed to get "PS4" games as close to 4K as they could.
1. As of last year, there were 90 million monthly active users on Steam. There are other storefronts out there too. No big publisher will leave out a user base that big. Not to mention that even at the start of this generation, most PC users were on tech that was lower than what consoles came out with.
Publishers will make games where they can make money, and they will not get rid of PC users who form a huge market base so that they can concentrate on a new generation of consoles. People also do not just upgrade PC's often. If a game wont run on spec similar to what you get on lockheart, then it wont be on PC, and I guess that you will see a lot of games running on lower than that spec.
2. Majority of PC gamers are on spec that will most likely be lower than anything we get next gen going by a survey undertaken by
Valve. How much memory do they have, what are the most used GPU's, what resolutions are they mostly working with?
3. The one place you will get games shining will be from first and second party developers that are not hampered with as many platforms to try an cater to, and even then, Microsoft can simply make a game for the higher spec console and then scale down.
As I mentioned, Sony is not building a 4K capable console to not make 4K games, and neither is Microsoft. The only reason we have CB4K on consoles is because Sony chose to have a console that could work at a $399 price point. Had they gone on and made a 4K machine at huge cost, we would be seeing mainly 4K games in the mid generation refresh space.